Visualization of hydraulic sandblasting perforation in horizontal Wells

Hydraulic sand blasting perforation technology has the characteristics of large perforation aperture, deep penetration, short operation cycle, and can realize the combination of perforation and fracturing, so this technology is widely used in horizontal Wells. Due to the lack of monitoring methods for actual hydraulic sandblasting perforation conditions due to the limitations of underground environment, researchers can only conduct indirect analysis by establishing numerical models or surface experiments. At present, there is no literature to evaluate the actual downhole hydraulic sandblasting perforation effects. Based on the real construction case, this paper uses the combination of crawler and downhole TV logging, and uses high-speed remote transmission and parallel transmission technology to obtain downhole video images. For the first time in China, the real hydraulic sandblasting perforation in the underground is seen, and it is analyzed and evaluated from three aspects of shape, position and scalar. It provides technical support for the staff to master the underground working conditions and improve the perforation technology in time, so as to promote the rapid development of the oil and gas industry.